Choosing a flagship phone in Bangladesh is tricky due to unstable pricing, unofficial imports, and real-world performance gaps. I used both the OnePlus 13 and iPhone 12 Pro daily for over a month in Bangladeshi conditions heat, outdoor brightness, long mobile data use, and mixed network coverage.

The OnePlus 13 feels more modern with smoother performance, better battery comfort, and a higher refresh-rate display. The iPhone 12 Pro remains reliable in camera consistency and network stability, but its age is noticeable. In this comparison, I’ll cover spec comparison, price reality, gaming, network, camera, display, and help you decide which phone actually makes sense to buy in Bangladesh today.

To understand real pricing, I didn’t rely only on online listings. I physically visited Bashundhara City, Jamuna Future Park, and several Gulistan outlets, while also checking trusted Bangladeshi online stores. What became clear quickly is that both phones exist almost entirely in the unofficial or grey market now.

The OnePlus 13 is widely available through unofficial importers and is treated as a current-generation flagship, which keeps its price relatively stable. The iPhone 12 Pro, on the other hand, is no longer officially sold, and availability depends heavily on refurbished or previously used stock. Because of this, pricing fluctuates wildly depending on condition, battery health, and storage variant.

Unofficial / Grey Market Buying Risk in BD

With unofficial units, warranty support is limited or nonexistent. In the iPhone 12 Pro’s case, battery replacement history and iCloud status matter a lot. For the OnePlus 13, checking box authenticity and IMEI matching is critical before buying.

I tested gaming on both phones extensively, playing PUBG Mobile, Call of Duty Mobile, Genshin Impact, and Free Fire in long sessions, often in warm rooms without air conditioning. The OnePlus 13 runs on a latest-generation flagship chipset, while the iPhone 12 Pro uses Apple’s older A-series processor that was powerful in its time.

From my experience, the OnePlus 13 maintains smoother performance during extended gaming. Frame stability stays consistent even after long sessions, and heat spreads more evenly across the body, making it more comfortable to hold. The iPhone 12 Pro still delivers strong peak performance, but thermal buildup happens faster, and I noticed minor throttling during longer Genshin Impact sessions.

At similar Bangladesh market prices, phones like the Samsung Galaxy S24, iQOO 12, Motorola Edge 50 Ultra and Xiaomi 14T offer equal or better sustained gaming performance than the iPhone 12 Pro, with newer chipsets and better cooling. In terms of both gaming power and brand value today, the OnePlus 13 stands closer to these modern flagships than the aging iPhone 12 Pro.

Battery Health Reality in Gaming

Battery drain on the OnePlus 13 is slower and more predictable. On the iPhone 12 Pro, battery health plays a huge role, older units drop faster and heat up more during gaming.

From my experience, the contrast becomes clear when both phones are used together in everyday life.

• The OnePlus 13 feels faster and smoother in daily use, from app switching to long hours on mobile data, and it manages heat and extended usage better in typical Bangladeshi conditions.

• The iPhone 12 Pro still feels solid and reliable, but its age shows when moving back and forth. The 60Hz display, slower charging, and shorter battery life become noticeable during long days outside.

• In practical terms, the OnePlus 13 suits users who want speed and flexibility, while the iPhone 12 Pro mainly makes sense for those already invested in iOS and comfortable with older hardware.

I tested network performance on both the OnePlus 13 and the Apple iPhone 12 Pro using Grameenphone, Banglalink, and Robi SIM cards across busy Dhaka areas, indoors, elevators, and congested roads. In daily Bangladeshi usage, the OnePlus 13 consistently felt more stable and quicker to recover signal, while the iPhone 12 Pro showed its age in tougher coverage zones.

• 5G support & future readiness: OnePlus 13 supports wider 5G bands and feels ready for Bangladesh’s upcoming 5G expansion. iPhone 12 Pro technically supports 5G, but limited band compatibility makes it less future-proof locally.

• 4G LTE performance: On Grameenphone and Banglalink, OnePlus 13 delivered stronger indoor signals and more consistent speeds, especially in shopping malls and concrete buildings. The iPhone 12 Pro occasionally dropped to lower speeds or took longer to reconnect after signal loss.

• Call quality & stability: Both phones handled voice calls well, but OnePlus 13 sounded louder and clearer in noisy outdoor environments. Call drops were rare on both, though signal recovery was faster on OnePlus.

• Mobile data consistency: During my long browsing, video streaming, and hotspot use, OnePlus 13 maintained steadier data flow, while iPhone 12 Pro showed occasional slowdowns under network congestion.

• Wi-Fi performance: On crowded home and office Wi-Fi networks, OnePlus 13 connected faster, held stronger signals, and delivered more stable speeds. The iPhone 12 Pro was reliable but less consistent when multiple devices were connected.

Using both phone cameras, namely the OnePlus 13 and the Apple iPhone 12 Pro, for daily use around Dhaka. I focused less on specs and more on how often the phone gave me a usable photo without effort. I took casual street shots, family photos, food pictures, and short videos in mixed lighting. Over time, the difference came down to consistency versus flexibility, iPhone felt safer, while OnePlus felt more capable but less predictable.

• Camera hardware approach: According to GSMArena, OnePlus 13 uses a 50MP Sony main sensor with ultra-wide and telephoto lenses, focusing on detail and sharpness. iPhone 12 Pro relies on a 12MP triple-camera setup with LiDAR, prioritizing balance and accuracy.

• Daylight photography: OnePlus 13 captures more detail and sharper textures, which looks impressive at first glance. iPhone 12 Pro produces slightly softer images but with more natural colors and better exposure balance.

• Low-light performance: In night shots, iPhone 12 Pro feels more dependable, controlling highlights and noise better. OnePlus 13 brightens scenes more aggressively, which can help visibility but sometimes reduces realism.

• Video recording: iPhone 12 Pro remains more consistent for handheld video, especially in changing light. OnePlus 13 records good video, but exposure and stabilization vary more depending on movement.

When I used these two phones for testing purposes, I watched YouTube, scrolled social media, read articles, and used maps outdoors. The OnePlus 13 simply feels easier on the eyes and more comfortable throughout the day, while the iPhone 12 Pro still looks good but feels dated once you switch back and forth.

• Display type & basics: OnePlus 13 uses a high-resolution AMOLED panel with a 120Hz refresh rate, while iPhone 12 Pro has an OLED display limited to 60Hz. In daily use, the higher refresh rate on OnePlus makes scrolling and animations feel noticeably smoother.

• Outdoor visibility: Under direct sunlight, OnePlus 13 stays more readable with higher peak brightness. The iPhone 12 Pro struggles more outdoors, especially during midday sun.

• Indoor comfort: At night or in low light, OnePlus 13 feels easier on the eyes with smoother brightness control. iPhone 12 Pro remains comfortable but doesn’t adapt as smoothly.

• Color accuracy & sharpness: iPhone 12 Pro shows more natural, accurate colors, especially for photos and videos. OnePlus 13 looks sharper and more vibrant, which many users will enjoy but may appear slightly boosted.

My Overall viewing experience: For long reading, browsing, and video watching, OnePlus 13 feels more modern and comfortable. Competing devices like Galaxy S24 or Pixel 8 also offer similar high-quality displays, but the iPhone 12 Pro now falls behind in daily viewing comfort.

If you want speed, gaming headroom, fast charging, and better 5G readiness in BD, go with the OnePlus 13. If camera consistency, iOS familiarity, and long-term software trust matter more, the Apple iPhone 12 Pro still makes sense, at the right used price.

For most buyers in Bangladesh today, the OnePlus 13 is the better overall choice thanks to its newer hardware, smoother performance, stronger battery life, and better future readiness. The Apple iPhone 12 Pro still delivers reliable cameras and iOS stability, but its age is now hard to ignore unless you find a well-priced unit in good condition.

Is OnePlus 13 actually faster than iPhone 12 Pro in daily use?

Yes. OnePlus 13 feels noticeably quicker with smoother scrolling, faster app switching, and stronger sustained performance, especially during gaming and heavy multitasking.

Which phone handles heating better during long gaming sessions?

OnePlus 13 manages heat more efficiently and maintains stable frame rates longer, while iPhone 12 Pro warms up faster and throttles during extended gaming.

For camera reliability, which phone should I trust more?

iPhone 12 Pro delivers more consistent photos and videos in mixed lighting, while OnePlus 13 produces sharper shots but can be less predictable.

Does iPhone 12 Pro still make sense to buy in BD now?

Only if priced well and in good condition. Otherwise, newer Android flagships like OnePlus 13 offer better longevity and overall value.

Which phone is more future-proof for BD networks?

OnePlus 13 is clearly more future-ready with broader 5G Network support, stronger signal holding, and better performance on congested Bangladeshi networks.